Glossary definition of HLR

Also known as: Home Location Register

HLR (Home Location Register) is a central master database within the GSM network, which maintains a permanent store of subscriber information, and some location information for the mobile network.

The HLR provides information on the services subscribed to by the network user, and it is also an important source of data to support the roaming process, enabling incoming calls to be routed to the location of the subscriber.